from django.http import HttpResponse
from django.shortcuts import render
from django.http import Http404
from django.shortcuts import render, get_object_or_404
from django.template import RequestContext, loader
from django.shortcuts import render_to_response
from polls.models import Poll
from polls.models import Choice
from django.http import HttpResponseRedirect, HttpResponse
from django.core.urlresolvers import reverse
from django.shortcuts import get_object_or_404, render
from django.http import HttpResponseRedirect, HttpResponse
from django.core.urlresolvers import reverse
from polls.models import Choice, Poll

from django.views import generic

class IndexView(generic.ListView):
    template_name = 'polls/index.html'
    context_object_name = 'latest_question_list'

    def get_queryset(self):
        """Return the last five published polls."""
        return Poll.objects.order_by('-pub_date')[:5]


class DetailView(generic.DetailView):
    model = Poll
    template_name = 'polls/detail.html'


class ResultsView(generic.DetailView):
    model = Poll
    template_name = 'polls/results.html'


def index(request):
    latest_question_list = Poll.objects.all().order_by('-pub_date')[:5]
    context = {'latest_question_list': latest_question_list}
    return render(request, 'polls/index.html', context)

#     latest_question_list = Poll.objects.order_by('-pub_date')[:5]
#     template = loader.get_template('polls/index.html')
#     context = RequestContext(request, {
#         'latest_question_list': latest_question_list,
#     })
#     return HttpResponse(template.render(context))
#     latest_question_list = Poll.objects.order_by('-pub_date')[:5]
#     output = ', '.join([p.question_text for p in latest_question_list])
#     return HttpResponse(output)

def detail(request, poll_id):
    #     return render_to_response('polls/detail.html', {'poll': question},context_instance=RequestContext(request))
    try:
        p = Poll.objects.get(pk=poll_id)
        print p
    except Poll.DoesNotExist:
        raise Http404
    return render_to_response('polls/detail.html', {'poll': p})


def vote(request, poll_id):
    p = get_object_or_404(Poll, pk=poll_id)
    try:
        selected_choice = p.choice_set.get(pk=request.POST['choice'])
    except (KeyError, Choice.DoesNotExist):
        # Redisplay the poll voting form.
        return render(request, 'polls/detail.html', {
            'poll': p,
            'error_message': "You didn't select a choice.",
        })
    else:
        selected_choice.votes += 1
        selected_choice.save()
        # Always return an HttpResponseRedirect after successfully dealing
        # with POST data. This prevents data from being posted twice if a
        # user hits the Back button.
#     latest_question_list = Poll.objects.all().order_by('-pub_date')[:5]
#     context = {'latest_question_list': latest_question_list}
#     return render(request, 'polls/index.html', context)
    return HttpResponseRedirect(reverse('polls:results', args=(p.id,)))
#     return HttpResponse("Hello, world. You're at the poll index.") 
  

def results(request, poll_id):
#     poll = get_object_or_404(Poll, pk=poll_id)
#     return render(request, 'polls/results.html', {'poll': poll})
    return HttpResponse("Hello, world. You're at the poll index.")


    
    